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https://www.readbyqxmd.com/read/28253059/are-injuries-more-common-with-crossfit-training-than-other-forms-of-exercise
#1
Chelsey Klimek, Christopher Ashbeck, Alexander J Brook, Chris Durall
Clinical Scenario: CrossFit is a form of exercise that incorporates rapid and successive high-intensity, ballistic movements. As CrossFit becomes an increasingly popular fitness option, it is important to determine how rates of injury compare to more traditional forms of exercise. This review was conducted to ascertain the incidence of injury with CrossFit relative to other forms of exercise. Focused Clinical Question: Are injuries more common with CrossFit training than other forms of exercise? Summary of Key Findings The literature was searched for studies that compared injury rates among individuals who participated in CrossFit fitness programs to participants in other exercise programs The search initially yielded >100 results which was narrowed down to three level 2b retrospective cohort studies that was deemed to have met inclusion/exclusion criteria In all three reviewed studies, the reported incidences of injuries associated with CrossFit training programs were comparable or lower than rates of injury in Olympic weightlifting, distance running, track and field, rugby, or gymnastics...
March 2, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28149523/differences-in-life-expectancy-between-olympic-high-jumpers-discus-throwers-marathon-and-100-meter-runners
#2
Jeffrey Lee-Heidenreich, David Lee-Heidenreich, Jonathan Myers
BACKGROUND: Several studies have demonstrated that body habitus is associated with survival (life expectancy) time. We sought to determine if survival differed between elite athletes with a range of body types. We hypothesized that the survival would differ between athlete types and that ectomorph athletes would have longer survival than heavier athletes. METHODS: For each Olympics between 1928 and 1948 we identified the top (up to 20) Olympic male and female finishers in the high jump (HJ), discus throw, marathon, and 100-m run...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28149397/optimizing-post-activation-potentiation-for-explosive-activities-in-competitive-sports
#3
Artur Gołaś, Adam Maszczyk, Adam Zajac, Kazimierz Mikołajec, Petr Stastny
Post activation potentiation (PAP) has shown improved performance during movements requiring large muscular power output following contractions under near maximal load conditions. PAP can be described as an acute enhancement of performance or an enhancement of factors determining an explosive sports activity following a preload stimulus. In practice, PAP has been achieved by complex training, which involves a combination of a heavy loaded exercise followed by a biomechanically similar explosive activity, best if specific for a particular sport discipline...
September 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28144412/secular-trend-in-thinness-prevalence-for-26-years-1989-2014-among-high-school-runners-in-japan
#4
Norimitsu Kinoshita, Rei Fukuda
BACKGROUND: Female distance runners are predisposed to thinness for performance reasons and at greater risk for health-related consequences than the general population. OBJECTIVES: The aim of the study was to evaluate the secular trends in thinness among competitive distance runners in Japanese high schools with sex-specific comparison. METHODS: Body mass index (BMI) were analysed in 9,881 female and 12,786 male runners participating in the annual national road relay races between 1989 and 2014 using the directory of a track and field magazine...
December 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/28129370/career-performance-trajectories-in-track-and-field-jumping-events-from-youth-to-senior-success-the-importance-of-learning-and-development
#5
Gennaro Boccia, Paolo Moisè, Alberto Franceschi, Francesco Trova, Davide Panero, Antonio La Torre, Alberto Rainoldi, Federico Schena, Marco Cardinale
INTRODUCTION: The idea that early sport success can be detrimental for long-term sport performance is still under debate. Therefore, the aims of this study were to examine the career trajectories of Italian high and long jumpers to provide a better understanding of performance development in jumping events. METHODS: The official long-jump and high-jump rankings of the Italian Track and Field Federation were collected from the age of 12 to career termination, for both genders from the year 1994 to 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28125544/acute-effect-of-countermovement-jumping-on-throwing-performance-in-track-and-field-athletes-during-competition
#6
Giorgos P Karampatsos, Panagiotis G Korfiatis, Nikolaos D Zaras, Giorgos V Georgiadis, Gerasimos D Terzis
Karampatsos, GP, Korfiatis, PG, Zaras, ND, Georgiadis, GV, and Terzis, GD. Acute effect of countermovement jumping on throwing performance in track and field athletes during competition. J Strength Cond Res 32(1): 359-364, 2017-The purpose of the study was to investigate whether performing 3 consecutive countermovement jumps (CMJs) just before an attempt enhances performance in track and field throwers during competition. Twelve shot putters, 8 hammer throwers, 9 discus throwers, and 3 javelin throwers of both sexes participated in the study...
February 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28087244/practice-makes-perfect-correlations-between-prior-experience-in-high-level-athletics-and-robotic-surgical-performance-do-not-persist-after-task-repetition
#7
Kevin Shee, Fady M Ghali, Elias S Hyams
OBJECTIVE: Robotic surgical skill development is central to training in urology as well as in other surgical disciplines. Here, we describe a pilot study assessing the relationships between robotic surgery simulator performance and 3 categories of activities, namely, videogames, musical instruments, and athletics. DESIGN: A questionnaire was administered to preclinical medical students for general demographic information and prior experiences in surgery, videogames, musical instruments, and athletics...
January 10, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28007336/the-combined-frequency-of-igf-and-myostatin-polymorphism-among-track-field-athletes-and-swimmers
#8
Sigal Ben-Zaken, Yoav Meckel, Dan Nemet, Alon Eliakim
OBJECTIVE: The IGF C-1245T (rs35767) and the myostatin (MSTN) Lys(K)-153Arg(R) genetic polymorphism may influence skeletal muscle phenotypes and athletic performance. Carrying the minor IGF T allele and the myostatin rare R allele was associated with higher circulating IGF-I levels, greater muscle mass and improved performance. The aim of the present study was to assess the combined frequency of the IGF 1245T (rs35767) and MSTN 153Arg(R) polymorphism among Israeli track and field athletes (n=111) and swimmers (n=80)...
December 15, 2016: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27990226/the-effects-of-eccentric-velocity-based-training-on-strength-and-power-in-collegiate-athletes
#9
Samantha M Dolezal, Derek L Frese, Tamra L Llewellyn
The purpose of this study was to determine if combining velocity-based training with eccentric focus (VEB) and velocity-based training (VBT) results in power and strength gains. Nineteen men and women collegiate track and field athletes participated in this study. The subjects completed a 12-week intervention with either a VEB program or a VBT program. To determine the effectiveness of each program, the subjects completed four exercise tests before and after the training period: vertical jump, medicine ball put test, 1RM projected bench press and 1RM projected squat...
2016: International Journal of Exercise Science
https://www.readbyqxmd.com/read/27904796/functional-hop-tests-and-tuck-jump-assessment-scores-between-female-division-i-collegiate-athletes-participating-in-high-versus-low-acl-injury-prone-sports-a-cross-sectional-analysis
#10
Philipp Hoog, Meghan Warren, Craig A Smith, Nicole J Chimera
BACKGROUND: Although functional tests including the single leg hop (SLH), triple hop (TH), cross over hop (COH) for distance, and the tuck jump assessment (TJA) are used for return to play (RTP) criteria for post anterior cruciate ligament (ACL) injury, sport-specific baseline measurements are limited. PURPOSE: The purpose of this study was to examine differences in SLH, TH, and COH distance and limb symmetry index (LSI), as well as total scores, number of jumps, and individual flaws of the TJA in 97 injury-free Division I (DI) collegiate female student athletes participating in ACL injury prone vs...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27879175/identifying-talented-track-and-field-athletes-the-impact-of-relative-age-effect-on-selection-to-the-spanish-national-athletics-federation-training-camps
#11
Javier Brazo-Sayavera, María Asunción Martínez-Valencia, Lisa Müller, Georgios Andronikos, Russell J J Martindale
This study examined the impact of relative age effect (RAE) on selection to the Spanish National Athletics Federation (RFEA) training camps (TC) between 2006 and 2013. Overall, 1,334 selected athletes at U15 years (cadet) and U17 years (juvenile) were compared against 27,711 licensed but unselected athletes for the same age groups. The results highlighted the influential role of the RAE on selection to national level track and field training camp opportunities. Interestingly, this effect was mediated by age and gender, where effects were stronger for both males and younger athletes (U15), with no evidence of RAE for older (U17) female athletes...
November 23, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27872757/sports-nutrition-knowledge-among-mid-major-division-i-university-student-athletes
#12
Ashley Andrews, Janet R Wojcik, Joni M Boyd, Charles J Bowers
Competitive athletes have goals to optimize performance and to maintain healthy body composition. Sports nutrition is a component of training programs often overlooked by student-athletes and their coaches. The purpose of this study was to examine student-athletes' sports nutrition knowledge across sex, class level, team, and completion of prior nutrition coursework. Participants included 123 mid-major Division I university student-athletes (47 females and 76 males) from baseball, softball, men's soccer, track and field, and tennis...
2016: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/27813391/physical-fitness-characteristics-of-adolescent-wushu-athletes
#13
Hsiao C Huang, Wen L Wu, Yu K Chang, I H Chu
BACKGROUND: The purpose of this study was to examine the physical fitness of wushu athletes in junior high schools and to compare their fitness with that of track-and-field and basketball athletes, as well as general junior high school students. METHODS: A total of 120 participants aged 12-15 years were recruited for this study (wushu n = 30; track-and-field n = 30; basketball n = 30; general students n = 30). Participants' height, weight, flexibility, muscle endurance, cardiorespiratory endurance, agility, power, and static and dynamic balance were assessed and compared among sports groups and general students...
November 4, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27776547/validation-of-the-fash-functional-assessment-scale-for-acute-hamstring-injuries-questionnaire-for-german-speaking-football-players
#14
Heinz Lohrer, Tanja Nauck, Vasileios Korakakis, Nikos Malliaropoulos
BACKGROUND: The FASH (Functional Assessment Scale for Acute Hamstring Injuries) questionnaire has been recently developed as a disease-specific self-administered questionnaire for use in Greek, English, and German languages. Its psychometric qualities (validity and reliability) were tested only in Greek-speaking patients mainly representing track and field athletes. As hamstring injuries represent the most common football injury, we tested the validity and reliability of the FASH-G (G = German version) questionnaire in German-speaking footballers suffering from acute hamstring injuries...
October 24, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27761664/increasing-performance-of-professional-soccer-players-and-elite-track-and-field-athletes-with-peak-performance-training-and-biofeedback-a-pilot-study
#15
COMMENT
Noortje H Rijken, Remko Soer, Ewold de Maar, Hilco Prins, Wouter B Teeuw, Jan Peuscher, Frits G J Oosterveld
The aim of this pilot study was to investigate the effects of an intervention consisting of mental coaching combined with either electro encephalogram (EEG) alpha power feedback or heart rate variability (HRV) feedback on HRV, EEG outcomes and self-reported factors related to stress, performance, recovery and sleep quality in elite athletes. A prospective pilot study was performed with two distinct cohorts. Soccer players were provided with four sessions of mental coaching combined with daily HRV biofeedback (Group A); track and field athletes were provided with four sessions of mental coaching in combination with daily neurofeedback (Group B)...
2016: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/27755011/mri-evidence-of-neuropathic-changes-in-former-college-football-players
#16
Caleb M Adler, Melissa P DelBello, Wade Weber, Miranda Williams, Luis Rodrigo Patino Duran, David Fleck, Erin Boespflug, James Eliassen, Stephen M Strakowski, Jon Divine
OBJECTIVE: To examine effects of participating in collegiate football on neural health several years after retirement. We hypothesized that relative cortical thinning and loss of white matter integrity would be observed in former players. DESIGN: Former NCAA Division I football players were compared with demographically similar track-and-field athletes with regard to cortical thickness and white matter integrity. SETTING: Participants participated in MRI scans at the Center for Imaging Research at the University of Cincinnati...
October 17, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27747795/oxidative-stress-in-female-athletes-using-combined-oral-contraceptives
#17
Sabina Cauci, Cinzia Buligan, Micaela Marangone, Maria Pia Francescato
BACKGROUND: Oxidative stress in female athletes is understudied. We investigated oxidative stress in sportswomen of different disciplines according to combined oral contraceptive (OC) use and lifestyle/alimentary habits. METHODS: Italian sportswomen (n = 144; mean age 23.4 ± 4.2 years; body mass index 21.2 ± 2.2 kg m(-2); sport activity 9.2 ± 4.1 h week(-1)) were analyzed; 48 % were volleyball players, 12.5 % soccer players, 10.4 % track-and-field sports, and followed by other disciplines' athletes...
December 2016: Sports Medicine—Open
https://www.readbyqxmd.com/read/27732653/seasonal-vitamin-d-status-in-polish-elite-athletes-in-relation-to-sun-exposure-and-oral-supplementation
#18
Jaroslaw Krzywanski, Tomasz Mikulski, Hubert Krysztofiak, Marcel Mlynczak, Ewa Gaczynska, Andrzej Ziemba
Vitamin D does not only influence the musculoskeletal health and mineral homeostasis but it also affects cardiovascular, endocrine, nervous, immune and mental functions, thus it is of considerable importance for both physically active people and elite athletes. However, vitamin D deficiency is common worldwide and results from inadequate endogenous skin synthesis (insufficient ultraviolet B exposure) and diet. To improve the vitamin D status elite athletes often travel to lower latitude during winter. The aim of the study was to evaluate the seasonal vitamin D status in Polish elite athletes according to the sun exposure and oral supplementation...
2016: PloS One
https://www.readbyqxmd.com/read/27732325/stress-fractures-concepts-and-therapeutics
#19
Carolina A Moreira, John P Bilezikian
CONTEXT: Stress fractures are repetitive use injuries in which recurrent strains lead to material fatigue and microarchitectural discontinuities. Stress fractures account for up to 20% of athletic injuries, more commonly sustained by women and in those who engage in track-and-field events. The pathogenesis of stress fractures is multifactorial. Although most stress fracture are reported among women who may experience menstrual disturbances, low body mass index, low energy intake and sometimes low bone mass, these individuals do not regularly seek endocrinological attention...
October 12, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27708727/masseter-muscle-activity-in-track-and-field-athletes-a-pilot-study
#20
Hideyuki Nukaga, Tomotaka Takeda, Kazunori Nakajima, Keishiro Narimatsu, Takamitsu Ozawa, Keiichi Ishigami, Kazuo Funato
Teeth clenching has been shown to improve remote muscle activity (by augmentation of the Hoffmann reflex), and joint fixation (by decreased reciprocal inhibition) in the entire body. Clenching could help maintain balance, improve systemic function, and enhance safety. Teeth clenching from a sports dentistry viewpoint was thought to be important and challenging. Therefore, it is quite important to investigate mastication muscles' activity and function during sports events for clarifying a physiological role of the mastication muscle itself and involvement of mastication muscle function in whole body movement...
2016: Open Dentistry Journal
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